Franklin holland



(No Model.) 2 Sheets-Sheet 1.

F. HOLLAND. HINGE.

Patented Oct. 8, 1895.

Ill-"NIH ll INVENTOIR fian%iz"ii 505692141? ATTORNEY Aunn'z'wB.GRAHAM.FMOTOUTHQWASHINGTONDL (No Model.) A 2 sneak-sheen 2.

F. HOLLAND.

HINGE.

o. 547,435. Patented 001;. a, 1895.

m W0 M m ATTORNEY Nirnp STATES 1 Erica.

PATENT FRANKLIN HOLLAND, OF NEYV BRITAIN, QONLZ'EOTICUT, ASSIGNOR TO THESTANLEY WORKS, OF SAME PLACE.

HINGE.

SPECIFICATION forming part of Letters Patent No. 547,435, dated October8, 1895.

Application filed June 13, 1396.

senate. 562,735. (N0 model.)

To all whom it may concern:

Be it known that I, FRANKLIN HOLLAND, a citizen of the United States,residing at New Britain, in the county of Hartford and State ofConnecticut, have invented a new and use ful Hinge, of which thefollowing is a speciii cation.

My invention relates to an improvement in butts and hinges, consistingof two or more leaves secured together by a detachable pintie-bearing;and it consists in the device hereinafter fully described.

The object of my invention is to construct the bearing of a hinge insuch a manner that the pintle shall be prevented from becomingaccidentally disengaged therefrom, at the same time permitting it to bereadily detached.

My invention is illustrated by the accompanying drawings, in whichFigure 1 is aside view of an open hinge, the knuckles being illustratedin vertical cross-section on line as as, Fig. 3, so as to reveal theinterior construction of the pintle-bearing and the said knuckles. Fig.2 is a vertical sectional view of the knuckles and pintlebearing of ahinge, taken in the plane of the line 'y 1 Fig. 1, and at right anglesto the vertical section illustrated in Fig. 1. Fig. 3 is an enlargedhorizontal cross-sectional view on the plane of the line z ,2, Fig. 1,of a hinge of my improved pattern. Fig. 4 is a perspective View of ahinge containing a modification of my invention. Fig. 5 is a perspectiveview of the pintle used therewith. Fig. dis a crosssectional view of aportion of the hinge shown in Fig. 4, taken on the plane of the line a2'.

Similar letters refer to similar parts.

A A are hinge-leaves provided with knuckles B B. D is a pintle-bearingadapted to pass through the said knuckles B B and to afford a bearingfor the same.

To prevent the pintle from being accidentally withdrawn from the hinge Iprovide the pintle D with a projection E.

In forming knuckles upon hinges it is customary to roll the same, and indoing so there is produced a longitudinal or upright groove on the innerside of the knuckle on the line where the edge of the knuckle meets thehinge-leaf. These grooves are designatedby the reference-letters F F.The projectionE upon the pintle D is of such a size that it can readilypass through the said longitudinal. grooves F F. By preference I providethe alternate knucklesB B with annular grooves G G, respectively, whichgrooves enlarge the knuckle adjacent to the perforation through whichthe pintle is adapted to pass. In operation the end of the pintle isinserted into the top knuckle B. The projection E passes first throughthe longitudinal groove F in the said top knuckle until it reaches thenext adjacent knuckle B. By then turning the said pintle-bearing theprojection E passes around the annular groove G until it comes into theplane of the longitudinal groove F, which permits the pintle to beintroduced a distance equal to'thelength of the said groove.

By repeating the operation above described the pintle is' graduallypassed through each separate knuckle until the projection E reaches theannular groove F most remote from the entrance. By turning the sameslightly out of alignment with the upright or longitudinal groove F thepintle D is pre- 7 vented from being accidentally withdrawn fromengagement with the knuckles and lost. The process of Withdrawing thesaid pintle is the reverse of the process of introducing the same.

It is obvious that if desirable only one annular groove may be provided,and in that event the projection E is by preference formed upon thepintle D at a distance from the upper end of the pintle equal to the distance from the entrance to the said annular groove. It is obvious alsothat if desirable the annular groove described may be provided at apoint intermediate in the length of one of the knuckles instead of atone end thereof, 0 as above described, without departing from the spiritof my invention.

One or more projections E may be formed upon the pintle, in Which eventit would be desirable to have the knuckles all of a sub 5 stantiallycorresponding length and the longitudinal or vertical grooves F Ftherein alternately opposite each other while the said pintle-bearing isbeing introduced into the said knuckles, it being assumed that theprotoo jections E are formed on opposite sides of the pintle.

The modifications of my invention shown in Figs. 4, 5, and 6 embody thefeatures already described in that the knuckles are provided with theupright and annular grooves referred to in the previous figures.

In the modification shown in Figs. 4, 5, and 6 I provide thepintle-bearing D' with two or more projections E, said projections beingformed on the said pintle D, by preference, out of the same verticalplane, as shown in Figs. 5 and 6. With the projections E E set asindicated, it is obvious that in order to withdraw the pintle from theknuckles formed on the leaves A A it is necessary to open the saidleaves to the proper angle until the upright grooves in the knuckles aredirectly above the projections E E To accomplish this it is alsonecessary, after having opened the leaves to the proper angle, as shownin Fig. 4, to revolve the pintle-bearing, so that the position of theprojections E E and the upright grooves next adjacent will be incorresponding upright planes. When the parts are in this position,it isobvious that the pintle may be withdrawn until the lowermost projectionE comes up into the plane of the annular groove in which the uppermostprojection E previously turned. Then, by again revolving the pintle, thesaid projection E may be swung into the corresponding plane with theupright groove in the uppermost knuckle, and the pintle may then beentirely withdrawn. To show the proper angle to open the leaves A A itmay be desirable to provide on the outer surface of the knucklessuitable marks-for instance, arrow-heads H H, which, when they coincide,as shown in Fig. 4, indicate that the leaves are open to the properangle. It may be further desirable to provide in the knuckle adjacent tothe head of the pintle-bearing D other indieating-marks I I, whichindicate the proper position of the pintle for the first part of theprocess of withdrawing. When the parts are in the position indicated inFig. 6, which is similar to the position indicated in Fig. 4, thepintle-bearing D may be withdrawn until the uppermost projection E isout of engagement with the upper knuckle, so as to permit the saidpintle or pin D to be revolved until the lowermost projection E can beentirely withdrawn. This latter modification may be admirably adaptedfor use on safe-locks where the pintles are ordinarily riveted in orderto prevent their being withdrawn, this process of riveting beingsometimes undesir-.

able for the reason that the doors cannot be taken off without breakingthe rivet-heads, whereas, by this modification, when the door is closedthe pintles are held in the knuckles by a means equally effective, andwhen the door is opened to the proper angle the said pintles may bewithdrawn and the entire door removed, if desirable.

Having thus described my invention, what I claim,and desire to secure byLetters Patent, is-

1. A hinge consisting of two or more leaves having knuckles formedthereon, upright or longitudinal grooves in the inner surface of one ormore of said knuckles, annular grooves in one or more of said knucklescommunicating with said upright groove or grooves, with a pintle, saidpintle having one or more projections adapted to enter and pass throughsaid grooves, substantially as and for the purpose specified.

2. A'hinge consisting of two leaves A A having knuckles formed thereonadapted to be alternately engaged by a pintle bearing, upright orlongitudinal grooves in two or more of said knuckles, annular groovestherein as described, and a pintle D having two projections E E formedthereon, substantially as and for the purpose specified.

3. A hinge consisting of two leaves A A having knuckles formed thereonadapted to be alternately engaged by a pintle bearing, said knucklesbeing provided with the indicating arrows H H, and having upright andannular grooves therein as described, and with the pintle projections EE and with the indicating arrows I I, substantially as and for thepurpose described.

FRANKLIN HOLLAND.

Witnesses:

FRANK H. MARSH, W. R. SIMPSON.

